The victim hasn't been identified by the coroner yet, but his family said he was 34 years old and left behind three children.

"I want to know why. I just want to know why," said the victim's mother, Pamela Fields.

Fields has more questions than answers. Less than three hours before her son was killed, she said he had been out enjoying Wednesday's summer-like weather.

"Him and his girlfriend, they were up there at the water park. He said, 'Momma, I'm having a good time. I said, 'J, go on and have a good time. Enjoy yourself.' I said, 'I wish I was up there with you relaxing,'" said Fields.

But by 2:30 p.m., Fields' son was the focus of a homicide investigation.

He was found shot to death in the doorway of an apartment at Beecher Terrace.

"Somebody from here called my cellphone and told me my son got shot," said the victim's father, John Fields.

Several of the victim's family members showed up at the scene, where detectives spent the afternoon talking to those who live nearby.

"It's a beautiful day. There were plenty of people out, so there will be several witnesses they will be talking to," said Louisville Metro Police spokeswoman Carey Klain.

Police aren't able to say what sparked the shooting, but the victim's parents believe it was the result of some sort of argument their son had been having with another man.

"He knew somebody was after him, but he was so angry he couldn't get to the guy. So, whoever it was got J before J got them," said Pamela Fields.

Now, his family wants someone to speak up, in hopes of helping police figure out who killed him.

"This is the day and time they're living in where people don't talk unless it actually affects them," said family member Denise Gardner. "If it was one of their relatives, they'd been wanting everyone to tell everybody what they know."

Police are still looking for the person responsible. Anyone with information should call the anonymous police tip line at 502-574-LMPD.